Sample-taking device



June 5, 1923. 1,457,583

w. J. LooFs ET AL SAMPLE TAKING DEVICE Original Filed Jan. 10. 192i C 20 trated Patented June 5,1923.

VUUN-ITEDY STATES ATENT. oF IcE;

WILLVIAMJ. Loors AND oHARLnso. cordon HOUSTON, TEXAS.

SAMPLE-TAKING nnvron.

Application filed January 10,1921, Serial No. 436,347. B enewed November: 18, 192 2 Sample-Taking Device, of which the follow.-

ing is a specification. o

This invention relates to new and useful imgrovements, in a sample taking device.

ne object of the invention is to provide a device of this character whereby samples of the strata being pierced, in drilling oil wells, may be obtained! a With-the above and other objects in view the invention has particular relation to certain novel features of construction, arrangement of parts and use, an example of which is described; in this specification and illusin the accompanying drawings, wherein The figure is a vertical sectional View of'i the device.

Referring now more particularly tovthe drawing, the numeral 1 designates a tubular drill stem to the lower end of which the reaches the cutting end of the shoe. The

upper end of the barrel ,2-isclosed bythe.

plate -5 which is threaded into the collar 3 3 between the lower end ofthe stem andthe upper end of, the barrel. A rod 6 is attached at its upper 'end tothe plate 5, said rod forming the shank of the, auger 7, which is carried by the lower end of said rod.

' As the stem 1 is rotated, in the usual way, the shoe 8 pierces the strata and the auger 7' forces the cuttings up into the core barrel. As the barrel is filled the waterand slush therein pass out through the ports 9 there-of.

When the barrel has received sufiicient sample it may be withdrawn for inspection and during the process of withdrawal the auger will retain the cuttings in the barrel.

WVhat weclaimis: v V A sample taking device including a tuhu-, lar stein having anoutlet port, a core barrel attached'to the lower end thereof and provided with a port, a plate closingthe upper end thereof, a drill shoe attached to the lower end thereof, and an auger anchored to i said plate anddepending within saidbarrel.

In testimony whereof we have signed our. names to this specification in the presence of two subscribing witnesses; 7 i

' WILLIAM J.-- LOOFS.

V CHARLES C. COX. o

WVitnesses: Y I

Jos. W. OLIVER,

WM. A Cn'rnnr. I 

